This map displays turnout by precinct in the Denver area. Precincts are colored according to quartiles of turnout (i.e. dark blue means relatively high turnout and light blue relatively low). You can click on a specific precinct to see its exact turnout number, as well as other info on number of registered vs. active voters. Zoom in and out in the map as you normally would in a web browser.
Data on turnout comes from the Colorado Secretary of State, and precinct boundaries from Denver’s Open Data Portal. *NOTE: Voter totals and therefore turnout percentages appear to be slightly different according the Denver’s own elections data. Unclear why it would vary from the CO SOS, but the differences do not broadly affect the overall trends.
This map displays Arapahoe County’s turnout statistics. Source data on votes comes from the Colorado Secretary of State and the precinct shapefile from arapahoegov.com
This map displays Boulder County’s turnout statistics. Source data for turnout is drawn from the Colorado Secretary of State, and precinct shapes comes from the GIS download page at bouldercounty.gov.
This map displays Adams County’s turnout statistics. Source data for turnout is drawn from the Colorado Secretary of State, and precinct shapes comes from http://www.adcogov.org/gisdata.
Jefferson County may potentially have a precinct file available which would enable me to add to this tool very quickly, but I would apparently need to contact their GIS personnel directly with a licensing agreement, which is nonsense (Someone in Jeffco please inform them about modern open data standards). But I can do it if someone is interested.
With the data we have we could slice and dice according to state Senate and House districts, as well as DPS and City Council.
In addition, others have suggested we import additional Census data on projected number of eligible voters in each precinct, so we can attempt to understand where there is not just a turnout gap among registered voters but also a turnout gap among potential voters. Just let me know what questions you’d like to answer!
–Hanna